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DNA and Protein Synthesis

Total questions: 40

Worksheet time: 21mins

Name
Class
Date
1.

DNA polmerase functions to

a)

read DNA and build new DNA strand

b)

unwind the DNA helixThis is a wrong answer

c)

read DNA and build mRNA

d)

"zip" up the new copy of DNA

2.

A DNA nucleotide is made up of

a)

DNA and RNA

b)

deoxyribose, phosphate group and nitrogenous base

c)

ribose, phosphate group and nitrogenous base

d)

deoxyribose, phosphate and uracil

3.

"We have discovered the secret of life" was proudly proclaimed by

a)

Hershey and Chase

b)

Avery, McCleod and McCarty

c)

Wilkens and Frankline

d)

Watson and Crick

4.

As DNA is replicated, the new strands formed from 1/2 the old strand and 1/2 new built up from nucleotides. This is known as DNA's ____ nature

a)

complimentary

b)

semi-conservative

c)

anti-parallel

d)

helical

5.

Thymine bonds with

a)

guanine

b)

uracil

c)

cytosine

d)

adenine

6.

Who found out the base pair rule and that percentages of bases where species specific?

a)

Watson

b)

Chargaff

c)

Franklin

d)

Pauling

7.

What type of bonds hold nitrogenous bases together?

a)

hydrogen

b)

peptide

c)

covalent

d)

ionic

8.

The enzyme that works to unwind the helix for replication or transcription is

a)

helicase

b)

ligase

c)

DNA polymerase

d)

proteinase

9.

Which of the following is NOT a difference between DNA and RNA?

a)

sugar present

b)

phosphate present

c)

the number of strands

d)

length of molecule

10.

The triplet ATT in DNA codes for __ in mRNA

a)

UAA

b)

AUU

c)

TAA

d)

start

11.

The codon AUG codes for

a)

leucine

b)

threonine

c)

methionine

d)

proline

12.

Which molecule delivers protein assembly instructions to the ribosome?

a)

tRNA

b)

rRNA

c)

mRNA

d)

DNA

13.

Transcription makes

a)

DNA

b)

mRNA

c)

protein

d)

tRNA

14.

Translations occurs in the

a)

cytoplasm at the ribsomes

b)

cytoplasm at the golgi bodies

c)

nucleus

d)

cell membrane

15.

Which anticodon and amino acid would the mRNA codon of GUC bring to the ribosome?

a)

GUC, valine

b)

AUG, methionine

c)

CAG, glutamine

d)

GAC, apartate

16.

How many bases make up a codon?

a)

1

b)

2

c)

3

d)

4

17.

How many codons are needed to code for one amino acid?

a)

1

b)

2

c)

3

d)

4

18.

What type of molecule is found at #5?

a)

mRNA

b)

DNA

c)

amino acid

d)

tRNA

19.

The shaded area labeled 2 on the diagram represents the

a)

ribosome

b)

RNA polymerase

c)

mRNA

d)

protein

20.

The image is representing which process studied?

a)

DNA replication

b)

Transcription

c)

Translation

d)

meiosis

21.

The molecule represented at point 2 is

a)

DNA

b)

mRNA

c)

rRNA

d)

tRNA

22.

T or F: Bacteria carry out transcription and translation

a)

true

b)

false

23.

DNA electrophoresis sorts DNA fragments by their

a)

bases

b)

charge

c)

length

d)

bases

24.

Who is the likely suspect of the crime?

a)

1

b)

2

c)

3

25.

Part 3 of the diagram represents

a)

sugar phosphate backbone

b)

base pair

c)

deoxyribose

d)

hydrogen bonds

26.

Part C of the diagram represents

a)

base pair

b)

sugar phosphate backbone

c)

hydrogen bonds

d)

ribosomes

27.

DNA is found where in eukaryotic cells

a)

mitochondria

b)

nucleus

c)

golgi bodies

d)

cytoplasm

28.

Who is famous for her x-ray photo of the DNA molecule

a)

Franklin

b)

Chargaff

c)

Watson

d)

Griffith

29.

The rungs of the "twisted ladder" analogy for DNA's shape are formed by

a)

base pairs

b)

sugar phosphate backbone

c)

helicase

d)

DNA replication

30.
In RNA, Uracil pairs with ______. 
a)
cytosine
b)
adenine
c)
guanine
d)
thymine
31.
The process to go from mRNA to a protein is called ____
a)
transcription
b)
rRNA
c)
replication
d)
translation
32.
DNA holds the code for
a)
lipids
b)
carbohydrates
c)
protein
d)
sugar
33.
Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand: 
GTAGTCA
a)
UATUAGA
b)
ACGACTG
c)
CAUCAGU
d)
CATCAGT
34.
What process is going on in this photo? 
a)
Transcription 
b)
Translation 
c)
Replication 
d)
All the above 
35.
Which component of DNA determines the traits of an organism? 
a)
Nitrogen Bases
b)
Sugar-Phosphate Backbone
c)
Hydrogen bonds
36.
What is the location in the cell for transcription?
a)
nucleus
b)
cytoplasm
c)
ribosome
d)
mitochondria
37.
What is the correct amino acid sequence for the mRNA code AUGCCAGUAUGA
a)
Met-Pro-Ala-Val
b)
Met-Pro-Val
c)
Tyr-Gly-His
d)
Tyr-Gly-Arg-His
38.
What has DNA?
a)
animals
b)
plants
c)
bacteria
d)
all of the above
39.
In eukaryotes, DNA is located in the
a)
cytoplasm
b)
nucleus
c)
cell membrane
d)
ribosome
40.

DNA is the _ of cells.

a)

complete set of blueprints

b)

UPS

c)

powerhouse

d)

protein assemblers

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